Archive of Our Own ^beta

Chapter Text

Izuku leaned against the sink, his breath quivered and his body shivered with pleasure as he pushed 2 fingers into his leaking pussy. It doesn’t feel like how Kacchan fingered him, Kacchan’s fingers are longer and thicker, but his body burns and he needs to quench the empty feeling inside. Biting his lips to keep his moan in as much as possible, Izuku thrusted his fingers inside a few more times before pulling it out and spreading his thick slick across his clitoris and the chubby lips of his pussy.

“Hnnn…”

A soft moan slipped his lips, his fingers trembled as he repeats the procedure. From the way his body feels like it’s on fire, how his pussy leaks like a broken faucet, his breasts are swollen and sore, and his nipples are hard and leaking just like his pussy does, Izuku knows his heat is fully here. He had woken up panting hard and covered in sweat but he thought he would have time to wait until Kacchan comes back from his morning exercise - one that he would normally join on normal days.

“Baby, you’re smelling real fucking good right now. Let me go and finish my exercise and then we’ll head to the heat room together okay. You continue to sleep first, I promise I’ll be fast,” Kacchan had said almost 3 hours ago when he came in to check on Izuku, and Izuku could see how much his scent was affecting his Alpha.

Despite how the rising sun barely light his room as Kacchan had pulled the curtains close and his eyes and brain weren’t fully awake yet, Izuku could still see how Kacchan’s eyes had dilated a little and he had his fists clenched in his jogging pants. If he was to listen to his whining Omega and his body that’s leaking from just being in the presence of his Alpha, Izuku would have wanted Kacchan right there and then. But because he’s a hero in training and he knows just how important his morning exercise is to Kacchan, Izuku had nodded with a smile.

“Okay, Kacchan. Be careful,” he had said as he pulled his nesting blanket that Kacchan had scented even closer to his nose, breathing in Kacchan’s delicious smoky scent to help with the cramps and fire that’s burning him.

Looking at the time, Kacchan should be back already. A worried frown crossed Izuku’s face as he wondered what could be delaying his Alpha. He’s definitely not thinking that Kacchan’s with someone else. No, he’s not doing that. Izuku knows Kacchan loves him, Kacchan has proven time and again that he only has eyes for Izuku and only wants Izuku. But— 

‘But he hasn’t marked us yet,’ his stupid brain said, soft and dangerous like a devil’s whisper, and Izuku gripped the sink tight.

Kacchan had been courting Izuku for almost 2 months now. It might not seem long enough for others but it felt like an entire lifetime for Izuku. He had loved Kacchan for as long as he could remember. He thought he could never get his Alpha to love him but when he does, when Kacchan finally confessed that he had loved and wanted Izuku his entire life too, all Izuku ever wanted was to have and bear his Kacchan’s bite.

Izuku wanted to officially belong to Kacchan.

“Don’t be greedy and impatient, Midoriya Izuku. Kacchan said he’ll mark you and that means he will. You trust Kacchan with your life, and so you’ll trust his words and wait for him. Don’t you dare doubt Kacchan, he just wants the best for you,” Izuku said to himself, his eyes fixed on his reflection on the mirror.

Another wave of cramp hits him, and his body trembled from the pain and fire that licked his entire body. Izuku wanted to wait for Kacchan but he’s afraid that the entire dorm would smell of him and his scent if he was to wait any longer. Exiting the toilet, Izuku reached for his phone, his eyes lighting up when he realised he has a new message from Kacchan.

[Sorry for taking some time, Baby. Bought you some of your favourite heat snacks and drinks that you’ll need later. Let me change and have something light and then we can go to the heat room. I can’t wait to fucking eat you, Baby! Keeping my fucking tummy light so that I can eat you all I want!]

Izuku’s heart swell and guilt starts to creep in his heart when he realised his stupid brain had doubted Kacchan for a short second. He should have known that Kacchan had been delayed because of him. He should have known that Kacchan would never want anyone else but him, and he actually knows that. It’s just that Izuku can’t help feeling afraid of losing Kacchan especially when he had refused to bite him.

Izuku can’t help the pain that’s eating him inside.

“Maybe… Maybe I can get him to bite me this time,” Izuku whispered, his eyes glinting with a rare mischief as he decided to do something a little extreme.

—

Anyone, even a blind man, could see that Katsuki’s excited. The bounce in his feet as he walked into the kitchen, the crazy feral smirk on his face when he grabbed a bowl and the box of cereal from the cabinet, and how he’s literally fucking glowing as he chowed down his breakfast. By now, everyone knew the only reason he’s behaving this way is because his Omega is on heat. This isn’t new, they had seen him behaving this same way the month before when Denki wasn’t surprisingly blasted when he had asked if Katsuki had been hit by some kind of stupefy or derange quirk from how crazy and weird Katsuki looked.

“It’s that time of the month huh,” Hanta said, grinning as he looked at Katsuki who simply threw Hanta a smirk as he chewed on his breakfast.

“Awww, look at how excited he looks! I swear I never thought I’d ever see this look on Bakubro’s face despite not being in battle. I mean look at him! He’s all excited to ravage Midobro’s sweet body!” Mina exclaimed, smirking as she then cackled at the pink hue that tinted the brash Alpha’s ears and neck. ‘OHOHO! He definitely just imagined Midobabe’s body! HAHAHA!’

“SHUT THE FUCK UP, IDIOT! AND DON’T YOU DARE THINK OF MY OMEGA’S BODY YOU SLIMEY, PINK ALIEN SHIT!” Katsuki growled, gripping his spoon tight as he tried his hardest not to get fucking hard at the thought of his sweet Omega and his delicious scent that never fails to get him salivating like a mutt.

“Wait, what’s ravage?” Katsuki heard stupid Dunce Face asked, and he smirked when he heard a soft, tired sigh and he just knows, without even looking, that it comes from the purple haired Alpha whose knot Dunce Face was trying to get onto. 

“To wreck, to cause damage, to ruin something. In short, Mina was trying to say that Bakugou was excited to—”

“OH MY GOD, BAKUBRO! I KNOW MIDOBRO SMELLS SO GOOD AND ALL BUT DON’T WRECK AND DESTROY HIM! DON’T BE SUCH A KNOTHEAD AND HAVE SOME SYMPATHY ON US OMEGAS! OH MY GOD! I DON’T EXPECT YOU TO BE SUCH A MONSTER IN BED!” Denki screamed, his face flushed red as he had just imagined his Omega friend screaming underneath this monster and he couldn’t bear to imagine what the poor Omega’s cunt look like. ‘Hmph! This is why they say to never judge an Alpha by how they treat their Omega outside! Bakubro looked so sweet and smitten with Midobro but he’s actually a mon—’

“‘M NOT FUCKING DESTROYING MY OMEGA, YOU IDIOT OF AN OMEGA! NO FUCKING WONDER YOU STILL CAN’T GET ONTO EYEBAG’S FUCKING KNOT! AND YOU STUPID FUCKING PINK HEAD, STOP SAYING SHIT THAT IDIOTS LIKE HIM WILL START BELIEVING! ‘Sides, why the fuck are we talking about me and Izuku when you and Shitty Hair fuck like fucking rabbits too?!” Katsuki roared, annoyed at the blatant hypocrisy because he fucking knows the 2 Alpha couple fucked fucking nasty behind closed doors too - he had unfortunately walked in on them fucking behind the gym on the gym mattress and that was the start of him sanitising his and Izuku’s mattresses before every use.

“Oh, you’re loud and excited today, Bakugou. Is it that Izuku’s heat is here?” Shoto asked as he strolled in with his cup of warm milk, and Katsuki has this urge to blow everyone’s fucking faces off for knowing his Omega’s heat cycle.

As if he wasn’t the reason why everyone knew his mate’s cycle.

“Because it’s rare for us to see you all happy and sunshine-y! Unless Midobabe’s around or on your lap or you’re in an exciting battle, all you show is that angry scowl. So, obviously we’re going to milk this rare once in a month moment and make full use of it,” Mina said, grinning, and from the chorus of agreeing ‘yes’ and nods, Katsuki questioned his fucking choice of friends.

“You idiots are fucking annoying! Fucking kill yourself!” Katsuki barked out as he shoved another spoonful of cereals into his mouth and chewed on angrily. ‘Stupid fuckers. If only ‘M not fucking excited that I could even smell Izuku’s delicious fucking scent here, ‘M gonna fucking howitzer all your fucking asses and sent you up to the fucking ceiling!’

“Come on, you can’t blame us bro! You’re so excited that we get excited too! We get so excited that we can even smell Midoriya’s cinnamon roll smell as if he’s here with us!” Eijirou exclaimed, grinning excitedly until blazing red eyes fell on him, and he gulped when he realised what he had just said. ‘W- What? Why the hell am I smelling Midoriya’s VERY POTENT scent now? Shit!’

“What… THE FUCK DID YOU JUST SAY?” Katsuki snarled, a dangerous growl rumbled in his chest as he looked at the other Alpha who had visibly panicked.

“Wait, Bakugou, I can smell him too. But, it’s different,” Mina said, the yellow in her irises blown out and her nose twitched as she sniffed the air.

“He- This smells stronger than usual. Almost similar to his preheat scent. Wait, is he on the first floor with us?!” Hanta asked, his voice muffled a little by his hand as he covered his nose - out of respect for his own mate and the Alpha of the Omega, and to make sure he isn’t affected like how the others are.

Katsuki thought it was just his brain supplying Izuku’s delicious scent to calm his annoyed ass down - a regular thing his brain does to make sure he doesn’t blow others up when they pushed his fucking buttons - but when he realised that he wasn’t the only one smelling Izuku’s scent, anger and jealousy surged through him and a possessive growl ripped through his throat as he glared at the other Alphas who immediately backed away with their hands up.

All except one, whose eyes were all blown out as he looked at the entrance of the kitchen.

“Izuku…” Shoto breathed, his hands shaking as they flew up to cover his nose and Hanta was quick to engulf his mate in a tight hug as he scent and drown Shoto in his smell.

“What… the fuck are you doing here, Izuku?” Katsuki bit out, biting back the snarl that’s threatening to rip out of his chest as he looked at his Omega who stood a few feet away wearing the Alpha’s black skull t-shirt, stupid short ass shorts and holding his nesting blanket close to his very obvious leaking breasts.

And Katsuki swore he could see the glint of mischief and smugness in those green eyes as his mate looked fucking innocently at him. ‘Fucking hell, Zu.’

His brain had already crashed out from not knowing how to react from all the feelings he was fucking hit with in that short few seconds; raging jealousy and anger that he’s fucking forced to share this beautiful, enticing sight of his mate with other Alphas who were probably - defi-fucking-nitely - salivating like he is, confused as to why Izuku’s here instead of waiting for him in his room like he did the month before, and fucking proud and beyond happy that his Omega had came down wearing nothing but his t-shirt, the short that was stained with his cum from the night before, carrying the blanket that he had scented, and having his beautiful dilated green eyes only on Katsuki.

‘Like a he’s fucking presenting himself for his Alpha in front of other Alphas,’ a sick part of his brain provided, and a low possessive growl rumbled in his chest as he eyed his mate whose beautiful, almost all blown out green eyes never looked at anyone else.

“I waited too long, Kacchan. We need to go now,” Izuku purred, and Katsuki’s eyes widened in surprise at the rare dominating tone coming out of his Omega. 

And oh, the way that just made his already erected dick fucking twitched in his pants.

“I- I know, Baby. I did told you I was getting you a few stuffs. It’s all here and we can go there when ‘M done with my—”

“You can bring your box of cereal and have them with my milk later. We need to go now, Alpha,” Izuku purred as he called out to his Alpha, and Katsuki had never ever gotten up and disposing off his food so fucking fast before.

“‘M so fucking sorry for taking longer than I promised but ‘M here now, Baby. Let’s go, ‘M fucking starving,” Katsuki growled, low and raspy into his Omega’s ear when he leaned down to scent his mate.

Katsuki made sure to cover and drown his mate in his scent before they leave for the heat room, one arm wrapped tight around his mate’s waist so that any fucking Alphas who could still smell his Omega’s delicious scent knew that he’s fucking taken. Complete silence fell around the others in the kitchen, their own mouth shut into a thin line as they were forced to swallow the saliva build up that’s caused by the delicious scent that bloomed from their Omega friend.

“Are- Are you guys okay? I mean I’m a fucking Omega but I’m drooling at how fucking good he smells! Shit, he smells so freaking good it’s so fucking unreal and unfair man!” Denki whined, the one who breaks the silence, and he’s glad he’s not the only affected by it or he might start questioning his second gender - although him having his own pussy is a clear sign of him being an Omega. ‘Midobro should be a freaking Prime Omega or something from how good he smells!’

“Oh man, thank God I’m not the only who’s affected by his scent. Knowing that an Omega is affected by him too is quite reassuring,” Eijirou said, pulling Mina down and shoving his entire face onto her neck’s scent gland while she simply hummed her rare quiet agreement in his neck’s scent gland - she felt bad as her fangs had actually extended from the Omega’s delicious scent. 

Hanta had gotten Shoto out of the kitchen the moment the couple left, going straight to his room as he knew Shoto must have felt guilty and embarrassed from how his body had reacted - Hanta had felt his mate’s saliva dripping while hugging him earlier. Shoto might have spent a lot of time with Izuku, probably the most compared to the other Alphas in the kitchen, but he and Izuku were also known to respect each other’s boundaries. Shoto had never accompanied Izuku during his full heat and Izuku had never left his room when he’s on heat. Today’s a rare occurrence and Hanta guessed it must have something to do with Katsuki. A low growl and a bite to his neck brought his attention back to his mate, a wide feral smirk crossed his face as he looked at his mate’s blown out eyes. They might both be Alphas but they turned each other on just fine, maybe even better than they had thought a year before.

“I’m here, Sho. Just gimme a moment- oookay, a moment not’s in the menu, got it Baby!” Hanta teased, chuckling when his mate knocked him into the bed.

Back in the kitchen, Hitoshi shuffled around his feet awkwardly as he felt the hot gaze of the blonde Omega that had been chasing him. It’s not that he’s not interested - the way his Alpha and his body reacted to the Omega is a clear indication that he wanted the Omega too - but he just wants to focus on his final year in the hero course. It had taken risking his life and fighting crazy villains to reach this far after all.

“Shinsou… Are- Are you not affected by Midobro’s smell?” Denki asked after seeing how unaffected the Alpha seemed. Although he was genuinely curious, Denki couldn’t help the pride that’s preening in his chest seeing how this Alpha doesn’t seem affected at all by Izuku’s potent cinnamon roll scent that affects even him when he was evidently affected by Denki’s scent.

“Midoriya smells good but that’s about it I guess. I don’t see a need to make a big deal out of it,” Hitoshi shrugged, his Alpha pranced around happily with his answer because his - THE, he reminded his brain - Omega grinned and looked beyond happy and proud from his response.

“I- I see. How- How about- How about me? H- How do I smell to you, Alpha?” Denki asked nervously, shooting his shot as he looked at the Alpha who looked visibly surprised at the straightforward question and nervousness in his voice - unlike the usual coyness and confident he had when he approached the Alpha before - but Hitoshi schooled his face to his usual stoic, unbothered expression almost instantly.

“You know you smell insanely good, Omega. But I love milk and I think you’d smell a lot more irresistible if you’re leaking milk too,” Hitoshi replied, smirking as he watched how the Omega’s lightning quirk flickered all over him like lights on a Christmas tree before smoke comes out of his ears, and he chuckled low as he walked out of the kitchen. ‘Cute idiot. Maybe having him now wouldn’t be such a bad idea.’

Denki doesn’t know how long his stupid brain had went into overdrive, Hitoshi had already left the kitchen when he came back to his senses, and a shrilling squeal left his excited mouth, “OH MY GOD! OH MY FUCKING GOD! DID YOU GUYS HEAR THAT?! DID YOU HEAR WHAT SHINSOU FUCKING SAID TO ME?! HE SAID I SMELLED INSANELY GOOD AND I’D SMELL BETTER IF I HAVE MILK! SHIT! I NEED TO LACTATE! HOW THE FUCK DO I MAKE MYSELF LACTATE?! I’M DEFINITELY GOING TO MAKE MYSELF LACTATE!”

‘I don’t care how hard or impossible it is, I’m definitely going to find ways to make myself to be able to lactate no matter what happens!’

—

The moment Recovery Girl stepped out - after reminding Izuku, again, to take his aftercare pills every morning that they were there - of the heat room, the Omega jumped on his Alpha who instantly dropped everything he was holding to catch him. Teeth clashing as they sucked on each other’s tongue, saliva dripping out of their mouths as they kissed and devoured each other’s mouth hungrily as if they had been apart and hadn’t just fucked each other in secret the night before.

“Ka- Kacchan…” Izuku moaned into Kacchan’s mouth when his Alpha grabbed his ass and grind his hard on against his very wet, very sensitive pussy.

“Fuck, you’re so fucking hot Baby,” Katsuki growled as he trailed his kisses and bites down Izuku’s jawline and neck, sucking, licking and biting on the Omega’s neck scent gland.

“I- I feel hot, Kacchan! I feel hot all over!” Izuku mewled, his body trembled as he leaned back to give more access to Kacchan.

Slipping his arm up to Izuku’s waist, Katsuki other hand slipped in between his Omega’s legs. He growled low and excited when his fingers brushed across the slick coated patch, grinning when he realised how dripping wet his Omega is.

“Yeah Baby, your cunt feels so fucking hot. Fuck, I can’t wait to have it on my fucking face,” Katsuki groaned, pulling Izuku in for another open mouth kiss. 

Izuku moaned when Kacchan bit his lips and sucked on his tongue, his brain a mush when his Alpha rubbed and flicked his wet pussy through his wet patch. Fire licked his entire body, his pussy clenched as it begged for more, and his nipples tingled from being rubbed against the t-shirt. He wants more.

Izuku needs more of his Kacchan.

“Kacchan, off… Take everything off now, please…” Izuku moaned as he pulled Kacchan towards the bed, his Alpha was quick to listen as he quickly discard his top and pants before pinning Izuku on the bed.

Katsuki’s dick was twitching fucking painfully in his pants but he’s starving, he wants to have his meal first. Katsuki licked his lips, a feral grin spreads on his face as he positioned himself in between his mate’s legs. He spreads them wide before pushing his face right onto the wet patch, licking and sucking on the slick that has soaked through the shorts. Izuku moaned, fists twisting into the bedsheet and his toes curled from how Kacchan’s eating him through his shorts. Izuku looked down, his body burns from the sight of his Alpha eating him so hungrily, and his mouth feels empty.

Izuku wants to taste Kacchan too.

“Ka- Kacchan… I- I want you too…” Izuku moaned, one hand fisted into the top of Kacchan’s hair, tugging his mate off him to get his attention.

Katsuki stopped, mouth and tongue hang open, as he tried to understand what his mate means. Izuku doesn’t know where the confidence comes from but he used his strength to flip them, straddling his very much surprised Alpha who stared up at him. Katsuki was about to open his mouth and ask Izuku why he had changed their usual position but his words were left stuck in his throat and a raspy growl slipped through instead, when Izuku rolled his cunt on his very erected dick. He groaned when he felt the slick soaking through his boxer, his hands immediately grabbed onto Izuku’s thick thighs and pressed him down harder as he rolled his hips up to meet Izuku’s wet cunt.

“Ka- Kacchan, you’re hungry right? I’m- I’m hungry too, Kacchan,” Izuku said seductively, a coy smile etched on his face, and Katsuki’s dick twitched against the warm, wet flesh against him.

“Oh, my poor Baby is hungry. What do you want, Baby? What can Kacchan do for you? Tell me, I’ll do any-fucking-thing,” Katsuki’s smirk widened at how his mate threw his head back when he thrusted into his wet cunt, one hand sliding up his mate’s neck to pull him down for another hot kiss.

“Ka- Kacchan… I want to taste Kacchan…” Izuku moaned into Katsuki’s mouth as he grinds down even harder, and a raspy moan slipped Katsuki’s lips.

“Whatever you want, Baby…” Katsuki growled low and raspy, red eyes focused and intense as he watched Izuku turned himself around while still straddling him. 

Katsuki recognised this position as reverse cowboy and he’s excited to give his mate what he wants, when Izuku shifted backwards. His eyes widened and he was probably vibrating with excitement when the dripping cunt stopped right above his face. He growled when he felt Izuku’s hot breath hovering above his erected dick, warm hands squeezing his shaft through his boxer. 

“Izuku…” Katsuki moaned low and raspy as he thrusted into the touch.

“This is what I mean when I wanted to taste you, Kacchan,” Katsuki’s breath hitched in his throat when he felt Izuku tugging his boxer off, and he hissed when Izuku took a long tentative lick up his shaft.

“Fuck, Izuku…” was all that Izuku needed to hear to know that he’s doing this right. He might have watched some videos to learn how to blowjob but this is his first time doing it for Kacchan.

Kacchan had always satisfied him and so Izuku wants to be able to satisfy his Alpha too. He doesn’t want to always be the only who keeps getting pleasured by Kacchan. Looking at the leaking precum, Izuku licked his lips before slowly licking the precum off Katsuki’s tip. Izuku moaned as the taste hits his tongue, Kacchan tastes salty and musky with the slight underlying sweetness from his nitroglycerin sweat, and it’s just so perfect and delicious that he wants more. Izuku licked in between the foreskin, dipping into all the creases to make sure he licked it all clean. Teasing the glistening tip with short little licks, he grinned when Kacchan hissed and squeezed his ass. One hand on Kacchan’s balls while the other stroke Kacchan’s shaft, Izuku swirled his tongue around the head and then up and down the shaft before he shove Kacchan whole into his mouth and began to suck his Alpha off.  

“Fuck!” Katsuki bucked his hips up, and Izuku hollowed his cheeks and pushed down even deeper to take in more of Kacchan.

Izuku reached down to his leaking slick, wetting his palm before lathering the slick all over Kacchan’s dick and balls. He slurped and sucked Kacchan, grazing his teeth lightly against his shaft while swirling his tongue all over the length and tip before he popped off and diving in again. His head bobbed up and down, one hand hand squeezing and fondling Kacchan’s balls while the other kept stroking his shaft up and down. He preened proud when Kacchan’s body trembled underneath him, and the low growls and grunts that slipped past his Alpha’s lips when Izuku swallowed him deep. 

“Shit! Fucking hell, Zu!” Katsuki moaned, his head thrown back as he felt the overwhelming pleasure of having his dick in Izuku’s warm wet fucking mouth.

His hips and thighs quivered from Izuku’s mouth sucking off him, but Katsuki’s not going to let Izuku pleasure him all on his own. His hands trembled as he pulled off Izuku’s shorts off him, licking his lips as he eyed the leaking cunt hungrily. Spreading the chubby lips with one hand, he opened his mouth and hung his tongue out as he thrusted his other middle finger in. He lapped and swallowed the delicious slick that gushes out of the cunt, growling low when Izuku moaned against his dick. He added another finger in, groaning at how the warm pulsating cunt sucked his fingers in. He wants more, he needs to have it straight from the hole itself. Pulling his fingers out and wrapping his arms around Izuku’s thighs, Katsuki tugged him down and latched his mouth onto the dripping cunt.

“Kacchan!” Izuku gasped when he felt Kacchan’s mouth on his pussy, his body trembled as he felt Kacchan’s tongue licking and flicking his clitoris before he plunged his tongue into Izuku’s hole. 

Loud squelching sound filled the room as Kacchan licked and sucked onto his pussy. His eyes rolled back and he teared up from the overwhelming pleasure, his hands trembled as he continued to stroke Kacchan’s dick faster and harder than before. He swallowed Kacchan deeper, bobbing up and down even faster as he felt his own climax reaching. Kacchan hits the back of his throat and he could feel Kacchan’s knot growing in his mouth. Pulling out just enough so that his knot wouldn’t get caught in his throat, Izuku kept sucking his Alpha’s tip off while his own body convulsed from Kacchan’s tongue fucking him. Kacchan sucked and nipped onto his clitoris, and he could feel the familiar climax coming. Izuku’s about to tip over.

“Kacchankacchan! Gonna! Gonna come! Gonna squirt!” Izuku wailed, his body trembled as he tried to keep his hands going. 

“Do it! Squirt, Baby! That’s what I want! Gimme! Gimme those delicious juice, Baby!” Katsuki continued to lap and suck onto the hole, his arms wrapped tight around Izuku’s ass as his mate’s body trembled hard above him.

It was by accident that Katsuki’s fingers travelled deep in between Izuku’s ass cheeks while holding him down, grazing and pushing against the rim of his wet butt hole, and Izuku comes hard as he squirted into his mouth and all over his face. Izuku’s warm, guttural moan while still having Katsuki’s tip in his mouth had Katsuki coming barely seconds later, popping his knot right in his mouth and spilling out all over him. The room that was filled with loud moans, groans and lewd squelching sounds seconds earlier fell into a quiet, except for the loud breathing as the couple heaved to catch their breath. Once he was able to sit, Izuku turned around and leaned down to kiss Kacchan. He purred into the kiss when their tastes filled his mouth and tongue.

“How was that, Kacchan? Was it okay? Did you like it?” Izuku asked, shifting back a little when Kacchan sits up, licking his tears and brushing his hair back from his sweaty face.

“Okay? Okay?! You were fucking amazing, Baby! I thought my dick was going to fucking melt in your fucking amazing mouth! Fuck, I thought I was going to fucking die!” Katsuki exclaimed, and Izuku giggled when he bit his cheeks and peppered soft kisses on his entire face. “But ‘M not done, Baby. That was just me having my meal, I need my dessert now.”

Izuku’s body shivered and goosebumps raised when Kacchan glide his hands up Izuku’s arm and thigh, one hand cupped on the back of his neck while the other trailed down in between his legs as he leaned down to suck onto Izuku’s neck scent gland. A soft moan escaped his lips, and Izuku whimpered when Kacchan pushed his fingers into his dripping pussy.

“Ka- Kacchan…” Izuku moaned against his Alpha’s neck, biting and sucking onto Kacchan’s scent gland as he continued to finger him slow and steady.

“Come here, Baby,” Kacchan whispered, voice low and raspy as he leaned back against the headboard and guided Izuku over his dick. “Sit on my dick, Baby. I want to have my dessert with my dick in your delicious wet cunt.”

Izuku’s body burned at Kacchan’s words, and he instantly obeyed because he could never say ‘no’ to Kacchan. Especially when his pussy clenched tight at the request. With his hands on Kacchan’s shoulders, Izuku whimpered and his body trembled as he sank himself down onto Kacchan’s still very erected dick. Katsuki grunted, a low satisfied growl rumbled in his chest as his dick plunged slowly into Izuku tight cunt. Hands on Izuku’s waist and rubbing circles on his beautiful skin, Katsuki waited patiently while his mate continued to sink down on his dick. Izuku moaned loud when he finally sat flushed on Kacchan’s crotch with Kacchan fully inside him, his body burned with the desire to move when he feels Kacchan’s dick twitching inside him.

“Ka- Kacchan feels so good… Feels so, so good…”

“Yeah, Baby, you feel so fucking good too. Fuck, you’re still so fucking tight no matter how many times we’ve fucked Baby. Before I pop my fucking knot, I wanna have my dessert first,” Kacchan smirked as he looked at Izuku hungrily, and Izuku’s stomach and pussy clenched with excitement from the pleasure he knew that’s coming. “Fuck, Baby, don’t clench down on my dick. ‘M gonna fucking come and knot you before I even have my mouth on your fucking tits if you do that.”

“Oh, so- sorry, Kacchan. Got- Got a little excited…”

Katsuki chuckled as he took his black skull t-shirt off Izuku, licking his lips as he eyed the hard leaking nipples, “‘S okay, Baby. ‘M fucking excited too. Look at how beautiful and perfect you are. Fuck, sometimes I wonder what did I do in my previous life to get a perfect fucking mate like you.”

“Ka- Kacchan… I’m the lucky one to have such a loving Alpha like you,” Izuku said, his eyes tearing up as he looked at his Alpha like he hung the moon and stars for Izuku.

And Katsuki would if Izuku had asked him to. 

“No, ‘M the lucky one cos you still stayed by my side despite how much of a fucking ass I was to you. And I only have my big fucking dick to give you while you’re giving me delicious cinnamon roll slick and sweet holy milk. So, ‘M the fucking lucky one and that’s the end of this stupid debate. Now, let’s see, which one should I start with first?” Katsuki smirked as he leaned down, one hand coming up to fondle and squeeze Izuku’s left breast while his tongue flicked on the other nipple.

“Hhnnn… Kacchan…” Izuku mewled, throwing his head back when Katsuki licked and flicked the perky tip of his sensitive leaking nipple.

One hand twirling and pinching the left nipple, Katsuki latched his mouth onto Izuku’s other nipple and he began to suck Izuku’s milk hard with a fervour like a thirsty man dying of thirst in the dessert. The omega moaned and mewled, fire licked his entire body as his body trembled and his claws dug deep into his Alpha’s shoulders. The way Kacchan sucked, flicked and bit his nipple had him curling his toes and arching his back. His milk sprayed all over, and Kacchan unlatched and hung his tongue out to catch the spray of milk with a feral grin on his face before latching on again. Looking at how his Alpha were drenched in his milk and the way he’s sucking and drinking him down, Izuku felt like he had been hit by Denki’s quirk but a thousand times better, his body convulsing from the overwhelming pleasure.

“You taste so much sweeter and creamier when ‘M inside you, Omega,” Katsuki grunted, switching to latch onto the other side while his other hand twirled and pinched the wet nipple he had just sucked. He groaned low and raspy when his Omega’s sweet milk hit his tongue, tasting equally sweet and creamy just like how his other breast tasted.

And fuck, Izuku tastes so good Katsuki could do this fucking forever.

Izuku’s pussy clenched tight from the intense pleasure and Katsuki felt like his dick was going to melt from how hot and tight Izuku’s squeezing onto him. Still with his mouth attached onto the delicious nipple, Katsuki began to rock them gently. Izuku moaned at the sudden movement before he began to move too, bobbing up and down Kacchan’s dick. Izuku’s body burned from the immense pleasure, and his brain a mush not knowing which pleasure he  should chase.

But what he does know, he wants more, Izuku needs more.

“Ka- Kacchan… Need more… Need more, please…” Izuku begged, his green eyes sparkled with tears as his pussy clenched to be filled deeper, begged to be thrusted harder.

And Katsuki was more than happy to comply.

Despite how he wanted to still have Izuku’s milk, Katsuki unlatched from the nipple and began to rock them harder. With his hands on Katsuki’s shoulders, Izuku shifted a little and had his knees on the outer sides of Katsuki’s thighs so as to spread wider and move faster. Katsuki growled loud when Izuku slammed down on his dick, his hands were fast to grip Izuku’s waist to assist him.

“Fuck! Baby! Sweet Jesus! Slow- Slow down! Fuck!”

“Can’t! Need! Need more! Give me more, Alpha!” 

“Fuck! Yeah! Whatever you need, Omega!”

Wrapping his arms around his mate, Katsuki immediately flipped them and he began to thrust deep and hard as how his mate had wanted. Izuku wailed, his claws digging and scratching Katsuki’s back as his mate fucked him hard into the bed. It felt so good, he felt so so good, but he wanted more. 

“Kacchan! Flip me! Flip me and mark me! Please! Please bite me, Alpha!”

‘YES! YES! BITE! BITE AND MARK OMEGA! HE WANTS THIS!’ Katsuki’s Alpha growled inside his head but Katsuki shook him out.

He wants to, he fucking desperately wants to bite his Omega, but not yet.

Instead of giving what his mate wanted, Katsuki continued to slam down even harder, thrusting into Izuku’s cunt hard and fast until his knot popped. Venom filled his mouth and his fangs had extended, a regular occurrence ever since they got together, but he hold himself back and bit down on Izuku’s shoulder when he came. Izuku’s moan filled the room when he came, his body spasmed hard before he laid still beneath Katsuki. It was then he smelled the change in Izuku’s scent and how he was whimpering softly beneath him.

“Why- Why won’t you mark me, Kacchan? I thought you said you wanted me,” Izuku whispered, tears running down the side of his face as he couldn’t stop the disappointment and sadness that filled his heart.

He might be sated by the sex but his Omega felt empty, broken even.

Upon seeing how his Omega was crying because of him, panic filled Katsuki’s chest. He leaned down, careful to not move much as they were still knotted down below, and hugged his mate as he scent him to calm him down. Izuku’s soft whimper made him feel so fucking bad and guilty but he couldn’t bite his Omega now, there’s still more that he wanted to do - needed to do - for Izuku.

“You know I want to mark you, Izuku. I really fucking do but there’s still more things that I wanna do with you while courting each other. I need more time to prove to you and everyone else that ‘M the best fucking Alpha for you. Please wait for me, Baby, I promise I’ll fucking bite you and make you mine soon,” Katsuki whispered as he caressed Izuku’s hair.

Izuku knows he could trust Kacchan’s words because Kacchan will never say anything that he doesn’t want to do, and Kacchan has never broken any of his promises to Izuku. He knows and that’s why he nodded weakly, despite how his Omega is wailing inside his head. The more Kacchan rejected and refused him, the more his Omega seemed hurt and reluctant to believe in his Alpha’s words and promises. Izuku’s own heart hurts, chest squeezing in pain as the mating scent gland at the back of his neck remain unmarked.

—

Being heroes who saved the world meant having thousands of eyes on you no matter where you are, and Izuku had long known and accepted the fact that he had signed off his right to having his own privacy when he chose to save the world. And he’s okay with that, okay with being in the eyes of the public, until those shameless Omegas laid their eyes on his Alpha.

His beautiful strong Alpha, his perfect Kacchan.

Izuku knows and understand why they would look and yearn for Kacchan. He doesn’t blame them for wanting Kacchan because who wouldn’t want a strong, beautiful and absolutely perfect Alpha who was also part of the team that had saved the world. Even more when Kacchan would make it obvious how he’s so absolutely in love and smitten with Izuku, making it obvious they’re mates by openly scenting his Omega in front of others, holding Izuku’s hands or having an arm around his waist, pepper him with chaste kisses and bites whenever he can, and bared his fangs at any Alpha - who isn’t a part of their friends - got a tad too close to Izuku. All Omegas dreamed of having a possessive Alpha, and Izuku knows he’s lucky to have Kacchan. He knows Kacchan would never look at anyone else other than him but that fact doesn’t soothe him when he’s still unmarked and other Omegas still dared to try their luck with his Alpha. 

Not that it matters, because Katsuki hates their fucking shits and guts.

“Fucking, disgusting, smelly shits,” Katsuki snarled, exploding whatever shits that had been piled onto his desk.

“It’s- They’re just trying to show their admirations for you, Kacchan,” Izuku tried to understand and be nice, despite how he really wanted to rip their hands off for gifting his Alpha presents that they have no right to give him because his Alpha already has a mate to buy him gifts, and that’s him.

Izuku was so focused on the gifts on Kacchan’s desk that he doesn’t even notice the ones piled high on his table, which was noticeably more. 

But the jealousy and anger in his heart didn’t even had a chance to take its root in Izuku’s insecure heart when his heart bloomed at how his Alpha doesn’t even blink when he incinerated all the gifts he received with his quirk.

“I don’t fucking need anyone else’s eyes on me, Baby. ‘M fucking happy with having just your eyes on me. Now gimme that shits, ‘M gonna fucking burn all that disgusting shits you received too,” Katsuki said, and Izuku was more than happy to pass them all to his Kacchan and even happier to see him burn the gifts he received using even more power than he had earlier. A small part of him was content to see Kacchan being equally possessive over him.

Katsuki was definitely a lot more possessive, but Izuku doesn’t know that. 

Izuku might have seen Katsuki baring his fangs when an Alpha brushed too close but he doesn’t see the terrifying death glares that Katsuki gave when someone had looked at Izuku longer than necessary, he wasn’t aware that the sudden kisses and bites were because Katsuki had caught Alphas staring and ogling at Izuku with such want that he needed to show and remind them that Izuku already has a fucking Alpha and that’s him, and Izuku definitely doesn’t know that Katsuki began to openly scent him and started to be more upfront and obvious about their relationship because he had accidentally overheard a bunch of knotheaded Alphas talking about having wet fucking dreams about Izuku and they were talking about how good Izuku’s cunt would feel. And in that moment, if Katsuki wasn’t a hero in training, he would have exploded their heads and entire bodies into the littlest of pieces that not even their family members could identify them.

Katsuki had killed for Izuku before, he wouldn’t mind doing it again.

However, he is a hero in training and so he did what he could - he called Izuku into the toilet while the fuckers are still in there and kissed Izuku while those fuckers could only watch in pure envy and rage. His sweet, innocent mate was undoubtedly shocked and confused but he opened his mouth nevertheless, his sweet moans filled the toilet as he kissed Katsuki back. Those fuckers stormed out, dicks most definitely hard in their pants, and Katsuki flipped his fingers at their backs. Katsuki might not have blasted their faces but he knows he’d have shown them what they could never have. 

“What- What was that for, Kacchan? We’re still in school and there were others in the toilet!” Izuku had said, slightly horrified but mostly abashed as his face flushed a beautiful red, and Katsuki had pecked his cute pretty pink nose.

“I just missed you, Baby. You were so busy with All Might that we didn’t even get to have lunch together,” Katsuki had said, and it wasn’t a lie. All Might had requested to meet Izuku for some shit and it’s taking all of Katsuki to not ask All Might to stop stealing his Izuku away from him.

However, like how Izuku doesn’t know how possessive and protective Katsuki is over him, he doesn’t know how much his refusal to mark Izuku has affected his Omega. He doesn’t know how much his Omega was hurting and how much it has actually affected his wellbeing. He doesn’t know that his rejections had caused Izuku to feel insecure about their relationship, he wasn’t aware of the tears Izuku had cried because he felt bad and guilty for doubting his Alpha but he couldn’t help it when he knows that there’s so many other perfect Omegas out there for Kacchan to choose, and he definitely doesn’t know how Izuku’s Omega hasn’t been communicating much because of the hurt he felt. Izuku had been talking to his Omega, trying to pacify and console him, but Izuku’s Omega hasn’t been interacting much other than the occasional whines.

“If your Omega hasn’t been interacting much, it would be good for us to get you a full checkup at the hospital, Midoriya. An Omega pushing himself to the back of your conscious might cause you to drop and you’re fully aware of how life threatening it is for an Omega to drop, don’t you? Besides, your scent also smells different, like you’re in pain and broken. Are you okay, Midoriya? Would you want to tell me what’s causing all this? If you’re worried about me telling your Alpha or your teacher, I assure you that I take my patient confidentiality seriously and promise that this stays between us,” Recovery Girl said seriously, but Izuku doesn’t know how to share what causes this.

How was he supposed to tell Recovery Girl that his Omega is hurt because his Alpha had refused to bite him? Izuku could never put this on Kacchan.

“I’m- I’m fine, Recovery Girl. I think I’m just a little burn out from doing both school and hero work at the same time,” Izuku lied, and he knows from the way the old nurse was looking at him that she’s not buying a word he said.

“Well, it’s okay if you don’t want to tell me. But I would really recommend you to get a full body checkup at the hospital before you continue any hero work,” Recovery Girl said, and Izuku nodded.

Izuku had approached Recovery Girl for some advice because he’s worried as his Omega hasn’t been communicating with him. He could still feel his Omega but all Izuku felt from him were hurt, broken and sadness, and Izuku’s own heart hurts whenever his Omega whined in his head. Izuku knew Kacchan’s rejections might have caused this but he couldn’t just force Kacchan to bite him when he doesn’t want to. He thought Recovery Girl would know what to do but hearing her advice, it seemed like she doesn’t have the solutions either.

‘Omega, I know you’re hurt from Kacchan’s rejections to bite us but you know he’s doing this for us. You know he wants us and only us. So, let’s trust him. I don’t want to force him to bite us, I want him to bite us when he’s all ready to make us his. So please, don’t shut yourself out. I need you too,’ Izuku tried to console his Omega as he walked back to their classroom, sighing sadly when all he got was a heartbroken whine in his head.

Izuku had just turned the corner when his eyes caught sight of a familiar blonde hair. He couldn’t see the face but his back looked like Kacchan, except this guy had another girl on his arm and Kacchan would never do that to him. Kacchan would never have someone else’s on his arm besides Izuku. He stared and looked closer, eyes narrowed when he realised it was the girl who had her arms wrapped around the guy’s arm as she dragged him into a seemingly dark classroom. Izuku’s Omega had already started pacing in his head, growling as he seemed to recognise that guy as Kacchan. Izuku hastened his steps and he stopped right in front of the dark classroom. Pushing the door open as quietly as possible, Izuku’s eyes widened in shock as sadness, anger and rage filled his entire body when he saw the girl on Kacchan’s lap.

‘Kacchan lied, he doesn’t want us. You were right, Omega, he found someone better than us,’ Izuku’s heart broke and his Omega whined in his head.

Fists clenched tight by his side as his lips trembled, Izuku turned to look away. He knows he should probably stop whatever that was happening but his heart was too broken and he doesn’t know what he’ll do if Kacchan says he doesn’t want Izuku anymore. His brain couldn’t think, his body was trembling from all the emotions rushing in him. Izuku was about to walk away when he noticed something weird. Kacchan wasn’t hugging the girl, he had his arms swinging limply by his side. Kacchan wasn’t looking at the girl, he had his eyes zoned out and staring straight into the darkness. The girl shifted in his lap and that’s when Izuku saw her face and he instantly recognised her as one of Kacchan’s fan that had been so obsessed with Kacchan. He doesn’t recognised her earlier because she had cut and dyed her initially long and brown hair to Izuku’s short and green hair. 

It was eerily the same, exact green shade of his hair.

‘Is- Is that why Kacchan’s allowing this to happen? Because she made herself to look like me? But- But why is Kacchan not even looking at her? Something’s weird, something’s off about all of this. Is this bitch threatening Kacchan? Does she has something on him and that’s why he’s letting this happen? Because it doesn’t seem like Kacchan likes her at all,’ Izuku thought, frowning as he kept staring at the scene unfolding before him. 

“Katsuki-kun, look at me. I’m a much better and prettier Omega than that ugly piece of shit that you have by your side. That’s why you haven’t bite him, am I right? But I’m here now, you can bite me. Mark me and make me yours,” the girl said, and panic and dread rushed through Izuku as he looked at Kacchan.

Silence filled the room, and Kacchan didn’t move a muscle.

“Come on, I know you want me. If you can give that ugly ass your attention, I definitely deserve more than this silent treatment. You know you want me, and I really want you too. Come, I’ll even take my collar off for you,” the girl said seductively, smirking as she took off her collar and scent patch.

Again, Kacchan didn’t move. He sat still like a statue and it was this that made Izuku realised that Kacchan had been quirked - because Kacchan would always flinch when an unknown scent hit his nose.

“Why are you still not reacting to me, hmmm? I’m better than that ugly bitch. Come on, give up your control to your Alpha and have me. I’m definitely way better than that ugly Omega you have by your side. Take a sniff and bite me, Kacchan,” the girl purred, and that’s when Izuku finally regained his senses and lost all control over his emotions.

“HE IS NOT YOUR KACCHAN, BITCH!” Izuku snarled, blackwhip whipped out of his palms and dragged her off Kacchan before slamming her hard against the back wall of the classroom.

But Izuku wasn’t done. He doesn’t let her go, his tendrils wrapped tight around her waist as he held her up against the wall.

His other tendril had his wrapped itself around Kacchan’s wrist, checking on his pulse to make sure he’s okay, and another turned on the lights. The loud crash and the female Omega’s scream got other students’ attentions as they started to crowd outside the room while another shouted about calling the teacher. But Izuku doesn’t care, his eyes glowed green and he snarled low and dangerous as he stalked his way into the classroom.

“Fuck, why the hell is my head hurting like I had just run into the fucking wall? Shit. What- What the fuck happened?” Katsuki groaned, massaging his fucking throbbing head but his eyes immediately snapped up to look at Izuku when he smelled his mate near him. “Why- Why are you here, Nerd? I thought you said you needed to see All Might?”

“Oh? Is that why you’re here with this bitch, Katsuki?” Izuku asked, his voice cold and filled with venom as he called Katsuki the name he hasn’t heard from Izuku in years. The Alpha flinched at the anger and sadness radiating from his Omega, turning away to look at who the fuck his Omega was talking about.

“Who the fuck is that?! I have no fucking idea what you’re talking—”

“She was on your fucking lap minutes ago, Katsuki. Did you not remember or are you just trying to shirk from taking responsibility of your actions?” Izuku asked, glaring at Kacchan Katsuki with so much anger that tears filled his eyes.

Izuku knows that Katsuki was quirked but that doesn’t appease the rage and jealousy that burned his heart. Besides, Izuku doesn’t know how the hell did his Alpha even got himself quirked if he hadn’t allowed anyone else near him. Izuku couldn’t stop thinking that Katsuki had allowed this to happen.

‘If Alpha had bitten us, this wouldn’t have happened,’ his Omega snarled, and Izuku’s palms bleed from how tight his claws were digging into his skin.

“NO! FUCK! I FUCKING SWEAR I DON’T FUCKING KNOW HER! I DON’T EVEN KNOW WHAT THE FUCK HAPPENED! The last thing I remember is that I was waiting for you at the canteen and then someone had fucking tapped on my shoulder. I turned around and then I- I don’t fucking know what happened. FUCK! DID THIS BITCH FUCKING QUIRKED ME?!” Katsuki growled, his eyes narrowed at the bitch still in Izuku’s blackwhip. 

Katsuki’s palm sparked dangerously and he bared his fangs, growling loud at the bitch who had the audacity to quirk him and got Izuku to misunderstand and get this fucking angry at him. He knew he wasn’t allowed to hurt another student outside of their trainings or mocked battles, and Omegas were more protected due to their declining numbers in the world, but this bitch quirked him first. Katsuki wants to burn her just enough so that she learns not to mess with him and Izuku. He aimed his right palm at her and was about to blast her with his AP shot when his quirk deactivated, and he knew who had arrived.

“What the hell is going on here, Problem Children?” Aizawa’s voice came from the entrance, and Katsuki dropped his hand as he turned to glare at Aizawa.

“GIMME BACK MY QUIRK! THIS FUCKING BITCH QUIRKED ME!” Katsuki roared, hands shaking in anger until he felt the light tug of Izuku’s blackwhip that was still wrapped around his left wrist. “Izuku…”

“She quirked Katsu- Kacchan. I saw her pulling Kacchan into this room. I didn’t know it was Kacchan at first, I followed her because something seemed off. It was when she took off her collar and scent patches that I realised she had—”

“NO! KATSUKI WANTED ME! HE WAS THE ONE WHO HAD ASKED ME TO COME HERE AND SO I DID! HE DIDN’T WANT YOU! HE DIDN’T WANT AN UGLY ASS OMEGA LIKE YOU! HE HATES YOU AND HOW YOU STICK TO HIM—”

A loud explosion exploded right beside the screaming female Omega, her eyes widened in surprise before they focused on Katsuki’s red, intense, angry ones. Katsuki could accept that he had been stupidly quirked because he had let his guards down, but he could NEVER accept someone talking shit about his Izuku.

His fucking beautiful Izuku, his fucking perfect Omega.

“One more fucking word and I swear I’ll blast your fucking head off,” Katsuki threatened, his palms sparked dangerously. 

“He- HE JUST BLASTED HIS QUIRK AT ME! SENSEI! AN ALPHA JUST TRIED TO KILL ME, AN OMEGA!” the female Omega shrieked, and Izuku dropped her like a sack of potatoes and watched as she scrambled to Aizawa who stepped back and watched her with narrowed eyes. 

“Don’t you dare touch me. You’re not my student but I am aware of how your quirk works, and I know you did use your quirk on Bakugou. Before you make up more lies, you should know that all the classrooms here are monitored by surveillance cameras and that all the collars you Omegas wore are embedded with a voice recorder to ensure all accusations are backed with evidences. In case you didn’t know, UA protects Alphas as much as we protects the Omegas. I’m bringing you to the principal, be prepared to face your consequences. And I don’t mean just getting expelled. I’ll make sure you’ll get punished like how a civilian does when they misused their quirk,” Aizawa said, glaring at the female Omega with disgust and anger, and the girl paled as she dropped on her knees and shrieked about how unfair he’s being.

“NOOO! YOU’RE NOT BEING FAIR! YOU MADE THIS DECISION BECAUSE YOU FAVOR YOUR STUDENTS! BUT I’M TELLING THE TRUTH! KATSUKI WANTS ME! HE DOESN’T WANT THAT UGLY BITCH! THAT’S WHY HE HASN’T MARKED HIM! I QUIRKED HIM TO MAKE HIM REALISE I AM BETTER—”

Another blast of AP shot skimmed right next to her, exploding the wall behind her to bits and pieces. Her eyes widened in surprise and she hissed angrily, but before she could say anything, Katsuki aimed his palm at her and growled, “I never missed. I told you, one more word and I’ll blast your fucking head off.”

“That’s enough, Bakugou. Midoriya, check on your mate. Get him to Recovery Girl if anything is amiss,” Aizawa said and then, without saying anything else, he wrapped the female Omega in his capture weapon and dragged her out.  

Izuku, Katsuki and everyone who had gathered watched as Aizawa dragged the screaming female Omega out of the class with barely any effort, his usually tired-looking eyes looked angry and annoyed. The female Omega thrashed and struggled hard in the capture weapon, screaming and shrieking as she tried to break her ass out of their teacher’s specially made support gear.

It’s impossible, both Izuku and Katsuki knew that.

The crowd soon dispersed and Izuku released the last blackwhip tendril holding onto Katsuki’s wrist before he turned around to walk away. Despite how things ended, Izuku was still simmering with anger and sadness. He knows it’s not Kacchan’s fault, he knows Kacchan was quirked and that he doesn’t mean for all that to happen, but that doesn’t mean Izuku couldn’t get hurt. As much as he tries to be reasonable about it, his heart squeezed painfully tight and tears burned at the back of his eyes when the image of the girl sat across Kacchan’s lap burned in his eyes and mind.

“IZU! BABY! WAIT! ‘S- ‘S NOT MY FUCKING FAULT! I WAS FUCKING QUIRKED! YOU KNOW I WOULD NEVER DO THAT TO YOU! IZU! IZUKU WAIT!”

Izuku wanted so desperately to be able to think rationally, to be able to ease this pain, anger and sadness in his heart but he couldn’t. He just couldn’t. He knows it’s unfair to Kacchan but how about him? Izuku had never cared about his own feelings, not when Kacchan bullied him before, not when Kacchan had refused to bite him. But his heart is hurting too much right now, and he means it literally because his heart was squeezing and clenching tight as if he had just taken a hard punch to his chest. His Omega isn’t making things easier, whining and whimpering in his head. He knows Kacchan wants to comfort him but he just couldn’t face Kacchan right now. Just when Izuku wanted to activate OFA to speed away, Kacchan grabbed his wrist and Izuku turned around and hissed angrily at him. 

“DON’T. FUCKING. TOUCH ME,” Izuku hissed, baring his fangs as he ripped his wrist out of Katsuki’s hold and stepped away from the Alpha.

Katsuki dropped his hand, eyes wide as he looked at Izuku’s teary eyes. Izuku had never hissed at him before. Not when Katsuki bullied him in the past, not when Katsuki had almost sexually assaulted him years ago. But here he is, his Izuku had hissed at him and he looked so pained that Katsuki wanted to turn around and blast the bitch for hurting his Izuku this much.

“Izuku… I- I would never do anything to purposely hurt you. You know I would never want any other fucking extras. You know I have only ever wanted you in my whole fucking life. You know I would do anything—”

“Lies…”

“Wh- What?”

“I SAID LIES! IF YOU WANTED ME, YOU WOULD HAVE BITTEN ME AND MADE ME YOURS! IF YOU HAD MARKED ME, STUPID INCIDENT LIKE THAT EARLIER WOULDN’T HAVE HAPPENED!”

“And you know why I didn’t want to bite you yet, Zuku! I’ve already told you that I still got lots that I wanna do with you and for you! I’ve planned it all—”

“Or maybe… maybe she’s right. Maybe you didn’t bite me because you don’t actually want me. You’re just wasting time with me until you find the perfect Omega to leave me for. I- I’m just an easy Omega, just a hole for you to fuck into,” Izuku whispered, his heart squeezed in pain as those words fell out of his mouth. He was in so much pain that his clenched fists trembled by his sides as he did his best to hold his whimper in, his tears dropping onto the floor as he avoids looking at Kacchan. 

Izuku doesn’t know why he said the things he said. He doesn’t mean to hurt Kacchan but his Omega no longer trust Kacchan’s words. He desperately wants to believe that Kacchan wants him but the rejections from Kacchan proved him otherwise. Alphas are territorial and possessive creatures, and they would bite and mark their mate to ensure that no one could take or steal their mate from them. It’s a lifelong bond, one that’ll last till they die, and it’s one that makes the bonds and connections between the mates stronger. Izuku wanted the bite, Izuku yearned desperately for his Kacchan’s bite, Izuku wanted to belong to Kacchan so bad, but it doesn’t seem like the Alpha feels the same because his Alpha had rejected him so many times now. 

“What… WHAT THE FUCK DID YOU JUST SAY?! IS THAT HOW YOU FUCKING FEEL ABOUT ME?! IS THAT WHAT YOUR OMEGA FUCKING THINK ABOUT ME, IZUKU?!” Katsuki roared as he crossed the space between Izuku and him, grabbing him by the shoulders as he shook the Omega to look at him. His eyes burned, his heart fucking hurts, and Katsuki thinks dying would be less painful.

And he would have known, because he had died twice and none of them could compare to this shitty fucking pain that’s tearing his heart into pieces.

“I DON’T KNOW WHAT ELSE TO THINK, BAKUGOU KATSUKI!” Izuku shouted as he looked up at the Alpha who was staring down at him with tears in his eyes. Kacchan looked so sad and broken, his claws dug deep into Izuku’s shoulders as he clung harshly and desperately onto him, that his Omega wailed before he receded into the back of Izuku’s mind. “I- I don’t know how else to think. I tried to understand that you wanted to do more while courting me but couldn’t we do them together after you bite me? What’s so different about doing them after we have officially marked each other, Kacchan? I don’t know, I can’t tell the difference. But because I loved you and wanted you to bite me only when you’re ready, I kept trying to comfort and appease myself and my Omega. It’s not easy when it hurts so goddamn much every time you refused us. And then this happened. Let me ask you, Kacchan, how would you feel if another Alpha quirked me and marked me? Is saying sorry enough—”

A loud menacing growl echoed in the hallway followed by the sound of rushed footsteps of other students scampering away. From how Katsuki was holding onto Izuku and the dangerous feral growl rumbling in his chest, they probably thought a fight was about to break out. Izuku, however, wasn’t afraid. He looked up at the Alpha and flashed a small sad smile at him.

“It angers you this much when it was just a question, so how do you think I felt when I saw another female Omega on your lap, Alpha? How do you think my Omega felt when we saw another Omega bared her neck to you? Yes, you didn’t react, and yes, you were quirked but if just me asking you a simple question angers you, how do you think I felt then and now? Let me tell you, sad and angry doesn’t even come close to what I felt then and how I’m actually feeling right now, Alpha. It hurts, it hurts so fucking much. I- I don’t want to talk anymore. I don’t want to see you for now. I- I need to cool down and heal this pain before talking with you again. I- I don’t want us to hurt each other by talking while our emotions are all over the place,” Izuku said, his voice soft as he pushed Kacchan away. 

Katsuki doesn’t want to let Izuku go but he doesn’t want to hurt Izuku more than he had already did, and so he dropped his hands and stepped back. His Alpha howled and whimpered in his mind, shouting at him to run after Omega, and he had to bite his tongue to stop himself from calling out to his mate. 

“Fuck, I’m so fucking stupid!” Katsuki growled as he gripped the sink tight, his claws had extended as he glared angrily at his own stupid reflection.

He knew Izuku had been asking him to bite and mark him after every sex but he had thought it was a spur of the moment thing. It wasn’t until the Omega’s recent heat where he had broken down and cried that he realised his mate was really serious about the marking. And fuck, Katsuki wanted to bite his mate. It would have been a fucking dream come true to officially mark Izuku as his but he thought he should proved himself more, to do right by Izuku. He wanted to do more and make up for all the times he had mistreated Izuku in the past so much that he doesn’t think about how his Omega felt from being rejected by him. He thought he had assured Izuku enough, that his mate understood his reason, but he should have thought and consider about his Omegan instinct and how his Omega would have felt being rejected.

“Fuck. Get your fucking shit together, Bakugou Katsuki. Izuku’s hurt but not once did he mention leaving you or finding a new Alph- Fuck! No! Don’t even think of that shit! We’re going to give him time and then we’ll show him just how much we want him too. Fuck the courting! If Izuku wants the bite, we’re gonna give him the fucking bite and then continue to court the fuck out of him. Yeah, we’ll show him just how much we fucking love and want him.”

—

“Fuck,” Katsuki muttered, a low growl rumbling in his chest as he watched his Omega getting scented by Icy Hot, Tape Face and Glasses.

From the way his classmates were all staring at him and Izuku worriedly, and how Izuku had avoided him like the plague, Katsuki knows they had probably heard of the fight argument between him and Izuku. And if the obvious wasn’t obvious enough, Izuku was so miserable and distressed that his scents leaked through his scent patches and he reeked so bad that Katsuki could smell him before he even entered the class. He knows his friends were scenting Izuku to help calm him down but he couldn’t help the possessive growl and the thought that he should be the one scenting his Omega. 

‘Omega is sad and is in huge distress. Need to scent Omega,’ his Alpha whined in his head, and it took all of Katsuki to not rush over to his mate and scent his mate himself. 

Because he knows he shouldn’t. He couldn’t.

Katsuki huffed as he dropped his head on the table, his heart hurts as he was reminded of how Izuku had avoided him. He knows he should have expected this when Izuku said to give him space and time to heal but to actually avoid him, Katsuki clenched his fists and did his deep breathing exercise to try and ease the sadness and pain crawling up his chest. He eyed the digital clock on top of the blackboard and he was just thinking of what he should cook for his Omega after school ends when All Might, Aizawa and Hawks walked into the classroom with a sense of urgency that could only mean one thing - trouble.

—

“Alright problem children, remember that you ARE NOT ALLOWED to engage the villain in a battle alone. This villain is an Alpha who had caused the deaths of 4 Omegas and bitched 2 Alphas, he’s dangerous and he does not care if you are civilians, students or Pro Heroes. If he attacks you, you’re allowed to fight back but only to get him off your back and then you’re to get the Pro Heroes. You ARE to inform the Pro Heroes IMMEDIATELY once you caught sight of him. If I hear any of you breaking this, I’m dragging your ass straight to the principal and you will be expelled. Is that clear?” Aizawa’s voice rang through loud and clear via the comms, and Izuku pursed his lips and nodded as if their teacher could see him.

“YES SENSEI!”

“Good. Now, stay focus and keep your eyes on your surroundings. We received reports that he had been sighted where Bakugou and team are an hour ago but since there has been a gap between the time, he could be anywhere. We deployed you guys to the places he usually appears so let’s see if we can get him today,” Izuku nodded again as he took in his teacher’s information.

“Sensei, do we have any update on what’s the villain’s quirk yet?” Izuku asked, his eyes focused on his surroundings while his team members were spread out a few metres away as they keep their eyes on the look out for the villain.

“At the moment, we have no confirmation, Midoriya-shounen. They did have a few guesses such as the ability to diffuse toxic gas that causes the hormones to go haywire, mind control that shuts the body down or the ability to cause one to hallucinate and drop their guards around him. We’re also informed of the support gears he’s sporting which enables him to fly and shoot high grade laser beams that will cut and burn. So, although his quirks are not known yet, his support gears are enough to bring you down if you’re not careful. Don’t let your guard down and keep your senses focus, young heroes,” Izuku nodded curtly, his eyes narrowed in on his surroundings and his friends.

Izuku frowned as he did his best to focus, to keep his head in this mission, to not think of Kacchan. This is his first mission without Kacchan by his side ever since they had gotten together, and he had chosen this. Izuku had chosen to group without Kacchan so that he could focus and not let his thoughts wonder to the hurt and problem between them, and yet his mind still thinks about his mate. Could he still call Kacchan his mate after what had happened between them? Is Kacchan okay being away from him like this? He doesn’t seem okay earlier, growling to show his disagreement when Izuku had chosen to group with Shoto, Hanta, Tenya, Ochako and Tsuyu. 

“BUT IZUKU! I WANT TO PROTECT YOU!” Kacchan had growled very angrily, his claws had all extended as he gripped the sides of his table tight. 

“I can protect myself well, Kacchan. I need to keep my head focus and I can’t with you around me. We will talk once we come back from the mission safely,” Izuku had replied back, eyes glaring stubbornly at Kacchan until the Alpha relented and he was forced to join his other usual team.

From how tense they both were, Aizawa wanted to pull them both out but they had both insisted they were fine and they wanted to join the mission. He gave in because he knows his 2 problem children would find ways to join in if he had stopped them from joining.

“If I hear a single argument over the comms, I’m pulling both of your asses out,” Aizawa had said, and the couple nodded. Izuku had avoided looking at Kacchan while Katsuki couldn’t keep his eyes off his mate.

Izuku thought he made the right decision to separate from Kacchan for this mission but seeing how he still couldn’t stop thinking of Kacchan and how his heart throbbed worriedly as he wondered about how his mate would be being away from him after their first big fight, Izuku wondered if he had made the wrong decision after all. He was thinking if he should try to communicate with Kacchan via private comms when his danger sense went berserk and his eyes widened at the sudden flash of unknown figure metres ahead of him.

“HE’S HERE!” Izuku shouted into the comms as he activated float and fajin to rush towards Shoto and Hanta.

The villain had managed to hurt Hanta with his laser beam but Shoto managed to dodge his next shot, throwing and blocking the villain off with his heaven piercing ice wall. He rushed to Hanta to check on him and Izuku swooped in, protecting the two of them while he fought off the villain who had his eyes on the Alphas. As they’re still unaware of his quirk, Izuku kept his distance as he fought and he could see the anger and annoyance on the villain’s face as Izuku kept pushing him further and further away from his friends.

“NO! IZUKU! YOU CAN’T FIGHT HIM ALONE!”

“GET HANTA TO SAFETY! I’LL KEEP HIM HERE WHILE WAITING FOR THE PRO HEROES TO ARRIVE!”

“You think you can keep your Alpha friends safe from me, little Omega? That’s cute,” the villain sneered, a feral smirk crept on his face as he eyed Izuku.

“Why- Why are you doing this? I’ve learned that not every villain are born evil. Sometimes, circumstances forced them to be one. So, why are you doing this? Why are you hurting innocent people?” Izuku asked as he took a proper look at the villain, and he was instantly reminded of All For One.

Deranged feral grin, nothing but obsession in his eyes, and all alone. 

“Do I need a reason to kill when I’m at the top of the food chain?” 

“What?”

“I’M A FUCKING ENIGMA! THIS WORLD WAS MADE TO BOW DOWN TO ME!”

“Shit,” Izuku breathed, avoiding the laser beam just in time before it hits him.

Izuku wrapped blackwhip around the villain and slammed him into the wall of the building behind him before keeping his distance and informing the team of the latest information he got. The villain being an Enigma made this a lot more dangerous, especially when his quirk is still unknown. 

“EVERYBODY PULL OUT! MIDORIYA GET AWAY!”

“I CAN’T! THE VILLAIN KEEPS TRYING TO GET TO SERO AND SHOTO! I CAN’T JUST LEAVE THEM! GET EVERYONE HERE NOW!”

“PRO HEROES AND THE OTHERS ARE ON THE WAY! CLOSEST ETA 5MINS!”

“NO! DEKU! IZUKU! GET OUT DAMN IT! GET THE FUCK OUT OF THERE!”

“KACCHAN! I- I CAN’T! HE’S ON MY HEELS NOW!”

Katsuki used his cluster to get to Izuku. His heart raced in his chest, his eyes burned from hearing the panic in his mate’s voice. His team followed closely in their vehicle below, and he could see the other Pro Heroes already in the air as they made their way towards where the villain is.

‘OMEGA IS IN TROUBLE! NEED TO SAVE OMEGA! NEED TO PROTECT OMEGA!’ his Alpha snarled in his head, and Katsuki increased his power and speed to the one he used to save All Might 2 years ago. His heart hurts from the sudden increase of power but he’ll be okay as long as he gets to his Omega fast.

“WHERE THE HELL ARE YOU GUYS?! HANTA IS HURT AND IZUKU IS FIGHTING HIM ALONE! I CAN’T LEAVE HANTA WHEN THE VILLAIN KEEPS TRYING TO GET TO US ALPHAS! HE- SHIT! THE VILLAIN JUST RELEASED SOMETHING! IZUKUUU!”

“WHAT THE FUCK HAPPENED TO IZUKU?! OI! ICY HOT! TODOROKI! FUCK!”

Fear, panic and rage boiled in his veins as Katsuki rushed to the scene. He had already regretted listening to Izuku’s stupid angry words to group separately earlier the moment they left for their mission before the villain even showed himself, and now he felt even worse. He should have fought to keep his spot next to his mate, should have known that crazy shits like this would always happened to his nerd as if he had a stupid quirk that attracts all the fucking villains to him. ‘Fucking hell, Zuku.’

Katsuki should have been next to Izuku now, to protect him. ‘Fuck! FUCK!’

“You better be fucking okay or ‘M gonna fucking kill you myself, Izuku!”

—

Seeing how the villain kept circling back to Shoto and Hanta, Izuku guessed that he’s targeting the Alphas to bitch them and so he did his best to get the villain to focus on him instead. He used blackwhip, fajin and float to keep the villain busy and away from the Alphas, and it was working until the villain used his quirk. Izuku didn’t see it coming, the sudden diffusion of pink mist spread in the air and he was kicked square in his head before he could avoid the mist. He crashed into the wall behind him and landed hard on his back. Izuku’s head throbbed and blood filled his mouth.

“SHIT! IZUKU!” Shoto shouted, his eyes widened in horror as he saw Izuku crashed into the wall and landed hard onto the ground in the alleyway.

“Go. Go and help Izuku. I’ll be fine here if you keep him busy there,” Hanta said weakly as he flashed a small reassuring smile, and as much as he doesn’t want to leave his very injured mate behind, Shoto knew he needed to help his best friend. Shoto nodded curtly and carried his mate to a more secure part of the rooftop, making sure Hanta would be safe from any attacks before blasting his way towards the villain.

Shoto blasted the villain back with wall of flames and the villain simply dodged his attacks and forced him to stay back using his laser beams. Unlike how the villain had been adamant to get to him and Hanta minutes earlier, it was clear he doesn’t want Shoto near him now. The villain seemed to have changed his target to the Omega who had crashed onto the cold floor of the alleyway, his entire being seemed to focus solely on Izuku. The change was palpable, the villain’s grey eyes was all blown out as he sniffed the air. 

“Izuku…” Shoto’s eyes widened when he noticed Izuku’s scent permeating the air, and he eyed the broken collar stranded a couple of metres away - it must have gotten damaged from the impact of Izuku hitting against the wall earlier.

“Finally, fucking finally, I found you,” the villain said as he landed a few metres away from Izuku.

“What?” Izuku struggled to stand up on his feet, his head spins and his Omega whimpered and whined in the presence of the Enigma.

‘Enigma was looking for us. Enigma wants us. Need to submit,’ his Omega whined desperately in his head and Izuku’s hand instinctively flies up to check his neck, eyes widening in horror to realise the collar that protects his mating scent gland is not there.

‘NO! THIS IS NOT OUR ALPHA! KACCHAN IS THE ONLY ONE I’LL EVER SUBMIT TO! NOT THIS ENIGMA, NOT ANYONE ELSE! ONLY KACCHAN!’ Izuku shouted in his head and his Omega growled as it tries to force itself to take over.

“Oh, you’re a strong one. Of course, as expected of a Prime Omega,” the villain sneered, smirking as he stalked towards Izuku who kept stumbling back.

“Wha- What? I- I’m not… I’m not a Prime Omega. I’m just a regular—”

“You didn’t know? Oh my God! You didn’t know! Of course you didn’t know! We Enigmas and Prime Omegas are rare, one in a few millions! And the best part, we are made for each other!”

“NO! I- I HAVE MY ALPHA! HE’S COMING! MY ALPHA IS COMING!”

“YOU’RE NOT FUCKING MATED! I CAN SMELL YOU! But whoever he is, he can come. I’ll just bitch him like how I bitch the others. There’s a reason I do this, Prime Omega. No other genders can withstand the power I hold, only a Prime Omega can match my strength and be my mate. I tried to bitch the Omegas to change them to a Prime Omega, it didn’t work. Did the same to the Alphas and they became useless Omegas instead. I was gonna keep trying but then you appeared. It’s fate, WE ARE MADE FOR EACH OTHER! SUBMIT TO ME!”

Izuku’s eyes widened as his legs gave way at the Enigma’s command, tilting and presenting his unmarked neck to the Enigma. Panic coursed through him and he tried to fight back, to gain back control over his body. His Omega was behaving weirdly in his head, mewling and whining in his head as if his Alpha was here. 

Something’s wrong, his Omega is not listening to him.

‘FIGHT BACK! THIS IS NOT OUR ALPHA! THIS IS NOT KACCHAN!’ Izuku tried to get his Omega to release his control over him but when his Omega snarled in his head in defiance, he realised it must have been the pink mist.

The Enigma was a few steps away when fire blast in between them and Shoto landed in front of Izuku. The Enigma snarled at the interference but before he could use his command over the Alpha, Shoto attacked him using wall of fire. He kept his attack constant, forcing the Enigma back with his quirks. With the Enigma’s shift of focus, Izuku was released from his command. Shoto was able to keep him back until the villain’s his pink mist flood the area and he used his Enigma command over the Alpha.

“KNEEL, ALPHA!”

“FUCK!”

Shoto fell to his knees, growling and baring his fangs as he tried to break the command off him. Izuku used blackwhip to drag Shoto away from the Enigma and he managed to bring them up to the rooftop using float before his head throbbed violently, his vision blurred and he collapsed from the effect of the pink mist.

“You cannot escape me, Prime Omega. My quirk brings out your counterpart to the surface and allows it to act on instinct. He’s not going to listen to you, he’s going to listen to his instincts. And his instinct is to want me,” the Enigma said, cackling as he stalked towards Izuku.

Izuku looked at Shoto, frowning when he saw that his friend’s heterochromatic eyes were dilated and he crouched low in a defensive stance as he snarled and bared his fangs at the Enigma. Shoto’s Alpha had been forced to come forward and take control of the body, leaving him helpless as their counterparts are not able to use their quirks. And Izuku realises then, that this is how the villain committed his crimes - using his quirk to bring out their counterparts to the surface and leaving them powerless as he controls them with his command. Seeing how the villain was making his way towards Shoto, Izuku knows the Enigma was planning to bitch Shoto first so that Shoto would be out of his way before he deals with Izuku. And Izuku could never let that happen. Wrapping blackwhip around Shoto, he threw Shoto onto the rooftop of the next building and he turned to face the villain.

“You think that’s going to save him from me?” the Enigma sneered, smirking as he eyed Izuku.

“You don’t have much time,” Izuku bites back as he eyed the villain, watching his every movements as the villain stalked towards him.

“I don’t need a lot of time to have you,” the Enigma said and he smirked as he gave his command, “KNEEL. SUBMIT TO ME, PRIME OMEGA.”

Izuku collapsed on his knees, body trembling like a leaf as he tried to fight the goddamn command. He’s not going to be mated to this villain, he’s not going to allow himself to be mated to anyone else other than Kacchan.

‘OMEGA PLEASE! THIS IS NOT OUR ALPHA! THIS IS NOT KACCHAN! WE ARE NOT GOING TO BE MATED TO ANYONE ELSE OTHER THAN OUR ALPHA! LET ME FIGHT BACK! GIVE ME BACK CONTROL!’ Izuku screamed in his head.

‘ALPHA DOESN’T WANT US. ENIGMA WANT US. WE SUBMIT TO ENIMGA,’ his Omega growled in his head.

‘NO! KACCHAN WANT US! KACCHAN WILL ALWAYS WANT US! But- But even if he doesn’t, I don’t want to be marked this way!’ Izuku growled as he stumbled back, and the Enigma frowned as Izuku’s distraught scent hits him.

Izuku’s panic and distressed caused the Enigma to step back, raising his hands as he tried to calm the Prime Omega down, “Easy, Prime Omega. You have no reason to be this scared. I’m not going to harm you. I want you as my mate. I have looked everywhere for you. We are fated, we’re meant to be.”

“I have my mate, I have my Alpha. I don’t need anyone else,” Izuku hissed.

“But your mate doesn’t know you’re a Prime Omega, does he? An Alpha is not strong enough to handle you, Prime Omega. He will leave you once he knows you’re not a regular Omega. He hasn’t marked you, has he? I don’t smell him. He’ll reject you even more once he knows your true gender, Prime Omega. You are made for me, we’re made for each other,” the Enigma said, hands flying to cover his nose as Izuku’s scent turned putrid, rotten.

“N- No… Ka- Kacchan won’t leave me…” Izuku muttered, his heart hurts as the Enigma’s words kept repeating in his head.

“Calm… Shit! Calm the fuck down, Prime Omega!” the Enigma tried to enforce his command on Izuku, gagging as he was forced to step back when Izuku’s putrid scent got stronger.

But Izuku wasn’t listening. The villain’s quirk caused his Prime Omega to feel his mate’s rejection, forcing Izuku to be stuck in a loop of hallucination where Kacchan no longer wants him, Kacchan rejected him, Kacchan found someone new. His Omega howled and wailed in pain, and Izuku collapsed from the pain that coursed through him. Tears burned his eyes and he couldn’t hear anything except for his Omega’s cry of despair, his erratic breathing and the thumping of his heart in his ears.

And that’s when Izuku heard him, Kacchan’s voice in his head.

‘I’ll always accept and love you, Zuku… Scars, milk and all… Don’t ever hide anything else from me again. You hear me?’ Kacchan’s promise snapped him out of the poisonous loop, slowly bringing him back to reality. He focused on his surrounding, his eyes looking for ways to escape the Enigma who was still trying to command him to calm down and submit to him.

‘You’re right, this is not Alpha. Alpha would never command us, Alpha respects us as his equal. But Enigma is too strong too defy. We need to dissociate, it’s the only way to stop his command,’ his Omega whimpered weakly, and Izuku almost sighed in relief upon hearing his Omega’s voice.

His Omega had managed to break itself free of the villain’s quirk, or was there a time limit to his control? That would explain why he was rushing to get Izuku under control and why he had to diffuse his quirk again. But his Omega being free of the villain’s quirk doesn’t mean its command doesn’t work on Izuku, it still does but his Omega would be able to fight back instead of forcing Izuku to submit as he had earlier.

‘You’re right, we need to dissociate,’ Izuku agrees, his eyes determined despite knowing how dangerous this would be.

Izuku could feel his body swaying as he struggled to keep fighting against the Enigma’s command. Defying an Alpha or Enigma’s command is risky to Betas and Omegas, life threatening if they choose to fight and resist the commands for too long. As heroes in training, they’re taught to defy commands - 01; to wear the UA collar as it’s built with technology that nullify the commands, 02; to ensure that another Alpha hero is on the scene to override the command, and 03; to dissociate as that completely impairs the Alpha or Enigma’s ability to control the Beta or Omega. 

But dissociating was never recommended.

Dissociating with their second gender means pushing their counterpart back, which could caused the body and mind to break. This will cause severe drop and, at times, death. This option was taught in case they were captured and tortured by villains and they’ll be able to use this method to preserve what is left of them during the torture, but otherwise it should never be considered. It is dangerous, he could very well die, but Izuku would rather die than allowing anyone else other than Kacchan to mark him. Izuku pushed his Omega back and he could feel his Omega retreating on his own. His heart clenched tight in a way it has never before, his head throbbed excruciatingly painful, and then he felt it in his heart and head.

SNAP.

Izuku had managed to dissociate from his Omega and while he could no longer feel the Enigma’s commands over him, his body nearly collapsed at the sudden emptiness. His heart clenched even tighter, his throat and lungs felt closed off, his vision blurred and darkened around the edges, but Izuku still tried to force himself to stand in front of the villain. The Enigma noticed Izuku swaying in the wind but he thought it was because the Prime Omega was struggling to fight his command. The sound of explosion and siren blaring in the distance caused the Enigma to curse, growling as he glared at the crowd of Pro Heroes approaching fast in the distance and then at Izuku.

“FUCK THIS! YOU’RE MADE FOR ME, PRIME OMEGA!” the Enigma growled, and he dashed towards Izuku.

“NO! I BELONG TO ONLY KACCHAN!” Izuku screamed and with all the last bit of strength he had left, he used 15% of OFA and smashed the villain into the wall of the next building.

“WHAT THE FUCK?! IZU! FUCK! IZUKU! IZUKU!”

Izuku could hear Kacchan screaming his name in the distant but his body felt too heavy to move. He doesn’t even know when he had collapsed because he doesn’t feel the pain of hitting the floor, or when he had closed his eyes. He tried to move but he couldn’t feel his body. His heart hurts, it feels like his body needs oxygen but he isn’t able to take in any, and he’s just so excruciatingly exhausted and he just wants to go home. He wants to go home with Kacchan.

‘Kacchan, I’m sorry. I’m so, so sorry. Take me home please, Kacchan.’

A peak into the next part

Izuku: You marked me when I dropped?!

Kacchan: I had to! You were dying!

Izuku: But I wanted to feel when you bite me, Kacchan!

Kacchan: I know! And I’m sorry! I’ll do anything—

Izuku: Mark me again!

Kacchan: Wha- What?

Izuku: I SAID BITE ME AGAIN! This time, I wanna be awake and filled up—

Aizawa and Class 3A: WE SHOULDN’T HAVE FUCKING VISITED!